CVE Watch15 jul 2026

CVE-2026-1837

A specially-crafted file can cause libjxl's decoder to write pixel data to uninitialized unallocated memory. Soon after that data from anoth

CVSS

7.5

Alto

EPSS

0.3%

p20

KEV

—

Exploit Today

0-100

Publicado: 11 feb 2026 · Última mod.: 15 jul 2026 · CWE-805 · CWE-770 · CWE-787

EPSS · 30d

0.3%EPSS · 30 días0.3%

2026-08-072026-09-04

Descripción técnica

A specially-crafted file can cause libjxl's decoder to write pixel data to uninitialized unallocated memory. Soon after that data from another uninitialized unallocated region is copied to pixel data. This can be done by requesting color transformation of grayscale images to another grayscale color space. Buffers allocated for 1-float-per-pixel are used as if they are allocated for 3-float-per-pixel. That happens only if LCMS2 is used as CMS engine. There is another CMS engine available (selected by build flags).

Referencias oficiales

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